Currently when you go an look at the guild bank history tab it displays the last 100 actions. I find the current limit to be extremely low considering guilds may have as many as 500 members. In a guild with only 28 members with only four of us on the list it only shows as far back as the last 1 day! Heck one run of the roomba addon to stack items in the bank wipes the entire history preventing administrators from seeing withdraw/deposit activity. I am sure I am not alone when I politely request that the list be expanded to contain the last 7-days of transactions (heck I would settle for 3-days but ideally would like 30-days with a way to filter and sort entries).